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authorKyle J. McKay <mackyle@gmail.com>2015-03-07 23:14:36 -0800
committerJunio C Hamano <gitster@pobox.com>2015-03-10 15:13:25 -0700
commit9529080de253b89474402f323e10470656764b3a (patch)
tree7154b4495465156ceab9d7595d03492e0a8a3d50
parent9874fca7122563e28d699a911404fc49d2a24f1c (diff)
downloadgit-9529080de253b89474402f323e10470656764b3a.tar.gz
configure: support HAVE_BSD_SYSCTL option
On BSD-compatible systems some information such as the number of available CPUs may only be available via the sysctl function. Add support for a HAVE_BSD_SYSCTL option complete with autoconf support and include the sys/syctl.h header when the option is enabled to make the sysctl function available. Signed-off-by: Kyle J. McKay <mackyle@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Makefile6
-rw-r--r--config.mak.uname5
-rw-r--r--configure.ac23
-rw-r--r--git-compat-util.h3
4 files changed, 37 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index c44eb3a851..fdac1b9803 100644
--- a/Makefile
+++ b/Makefile
@@ -348,6 +348,8 @@ all::
#
# Define NO_HMAC_CTX_CLEANUP if your OpenSSL is version 0.9.6b or earlier to
# cleanup the HMAC context with the older HMAC_cleanup function.
+#
+# Define HAVE_BSD_SYSCTL if your platform has a BSD-compatible sysctl function.
GIT-VERSION-FILE: FORCE
@$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -1414,6 +1416,10 @@ ifdef HAVE_CLOCK_MONOTONIC
BASIC_CFLAGS += -DHAVE_CLOCK_MONOTONIC
endif
+ifdef HAVE_BSD_SYSCTL
+ BASIC_CFLAGS += -DHAVE_BSD_SYSCTL
+endif
+
ifeq ($(TCLTK_PATH),)
NO_TCLTK = NoThanks
endif
diff --git a/config.mak.uname b/config.mak.uname
index b64b63c34c..f4e77cb9e5 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -107,6 +107,7 @@ ifeq ($(uname_S),Darwin)
COMPAT_OBJS += compat/precompose_utf8.o
BASIC_CFLAGS += -DPRECOMPOSE_UNICODE
BASIC_CFLAGS += -DPROTECT_HFS_DEFAULT=1
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),SunOS)
NEEDS_SOCKET = YesPlease
@@ -199,6 +200,7 @@ ifeq ($(uname_S),FreeBSD)
PYTHON_PATH = /usr/local/bin/python
HAVE_PATHS_H = YesPlease
GMTIME_UNRELIABLE_ERRORS = UnfortunatelyYes
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),OpenBSD)
NO_STRCASESTR = YesPlease
@@ -208,6 +210,7 @@ ifeq ($(uname_S),OpenBSD)
BASIC_CFLAGS += -I/usr/local/include
BASIC_LDFLAGS += -L/usr/local/lib
HAVE_PATHS_H = YesPlease
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),MirBSD)
NO_STRCASESTR = YesPlease
@@ -215,6 +218,7 @@ ifeq ($(uname_S),MirBSD)
USE_ST_TIMESPEC = YesPlease
NEEDS_LIBICONV = YesPlease
HAVE_PATHS_H = YesPlease
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),NetBSD)
ifeq ($(shell expr "$(uname_R)" : '[01]\.'),2)
@@ -225,6 +229,7 @@ ifeq ($(uname_S),NetBSD)
USE_ST_TIMESPEC = YesPlease
NO_MKSTEMPS = YesPlease
HAVE_PATHS_H = YesPlease
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),AIX)
DEFAULT_PAGER = more
diff --git a/configure.ac b/configure.ac
index 55e5a9b3e6..bbdde85c3d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1046,6 +1046,29 @@ GIT_CONF_SUBST([NO_INITGROUPS])
#
# Define NO_ICONV if your libc does not properly support iconv.
+AC_DEFUN([BSD_SYSCTL_SRC], [
+AC_LANG_PROGRAM([[
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+]],[[
+int val, mib[2];
+size_t len;
+mib[0] = CTL_HW;
+mib[1] = 1;
+len = sizeof(val);
+return sysctl(mib, 2, &val, &len, NULL, 0) ? 1 : 0;
+]])])
+
+#
+# Define HAVE_BSD_SYSCTL=YesPlease if a BSD-compatible sysctl function is available.
+AC_MSG_CHECKING([for BSD sysctl])
+AC_COMPILE_IFELSE([BSD_SYSCTL_SRC],
+ [AC_MSG_RESULT([yes])
+ HAVE_BSD_SYSCTL=YesPlease],
+ [AC_MSG_RESULT([no])
+ HAVE_BSD_SYSCTL=])
+GIT_CONF_SUBST([HAVE_BSD_SYSCTL])
## Other checks.
# Define USE_PIC if you need the main git objects to be built with -fPIC
diff --git a/git-compat-util.h b/git-compat-util.h
index eb9b0ff328..4ead8c8fdd 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -127,6 +127,9 @@
#else
#include <poll.h>
#endif
+#ifdef HAVE_BSD_SYSCTL
+#include <sys/sysctl.h>
+#endif
#if defined(__MINGW32__)
/* pull in Windows compatibility stuff */